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Published on: February 2, 2015
Stroke in newborn infants
1Neuroepidemiology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892-1447, USA. knelson@helix.nih.gov
Insights
Perinatal stroke, a significant risk for newborns, can lead to lifelong neurological issues. Early identification and understanding of risk factors are crucial for managing this condition.
Area of Science:
- Neurology
- Pediatrics
- Obstetrics
Background:
- The perinatal period, encompassing days before and after birth, presents a critical window of risk for both maternal and infant stroke.
- Arterial ischemic stroke affects approximately 1 in 4000 full-term infants, often presenting with neonatal seizures or neurological signs.
Purpose of the Study:
- To summarize the current understanding of perinatal stroke, including its presentation, risk factors, and consequences.
- To highlight the knowledge gaps in the natural history, prevention, and treatment of perinatal stroke.
Main Methods:
- Review of existing literature on perinatal stroke.
- Analysis of clinical presentations and recognized risk factors.
Main Results:
- Perinatal stroke is a recognized cause of neonatal seizures and can be diagnosed retrospectively through hemiparesis or later-onset seizures.
- Hereditary/acquired thrombophilias and environmental factors are identified risk factors.
- Perinatal stroke is a significant contributor to congenital hemiplegic cerebral palsy and potentially other neurological disorders.
Conclusions:
- Perinatal stroke is a serious condition with significant long-term neurological implications for affected infants.
- Further research is essential to elucidate the natural history and develop evidence-based strategies for prevention and treatment.
Abstract:
The few days before and after birth are a time of special risk for stroke in both mother and infant, probably related to activation of coagulation mechanisms in this critical period. Arterial ischaemic stroke around the time of birth is recognised in about one in 4000 full-term infants, and may present with neurological and systemic signs in the newborn. Neonatal seizures are most commonly the clinical finding that triggers assessment. In other children, perinatal stroke is recognised only retrospectively, with emerging hemiparesis or seizures after the early months of life. Risk factors for perinatal stroke include hereditary or acquired thrombophilias and environmental factors. Perinatal stroke underlies an important share of congenital hemiplegic cerebral palsy, and probably some spastic quadriplegic cerebral palsy and seizure disorders. There is much to be learned about the natural history of perinatal stroke, and there are as yet no evidence-based strategies for prevention or treatment.
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